KorgPrologue 16 Polyphonic Synthesizer


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Korg Prologue 16

Following in the steps of its Minilogue and Monologue ancestors, Prologue brings a whole new sonic arsenal to the table.

This 16 voice analog polysynth makes use of pristine analog circuitry, a 61-note keyboard, a digital multi-engine, and a slew of DSP-based effects. While all of those features are stellar, what truly sets the Prologue apart is its open-source firmware. This decision opens the door to user customization of oscillators and effects programs, meaning users have everything they need to make the Prologue all their own.

Internally, Prologue features an all-analog signal path alongside 11,000 discrete components. In addition to wave shaping capabilities, there's also a two-pole lowpass filter that excels in the creation of immaculate basslines. Analog ingenuity aside, the Prologue boasts a powerful multi-engine that provides digital waveforms and FM. The engine itself consists of three distinct sound engines, which can be combined with Prologue's analog VCOs to push its sonic potential far beyond that of other polysynths. This tripartite engine consists of a noise generator, VPM oscillator, and User oscillator. The noise generator lends itself to the creation of percussive sounds and strange effects, the VPM produces sharp metallic sounds with complex overtones that are about as far away from analog as one could get, and the user oscillator allows users to load up to sixteen custom oscillator programs.

The Prologue 16 differs from its 8 voice counterpart through its inclusion of an analog compressor, complete with corresponding VU meter. This low end booster/compressor utilizes an analog circuit that lends an emphatic presence that traditional EQs simply cannot deliver. This addition makes the Prologue 16 ideal for live performances.

Prologue 16 Features

  • Multi-engine equipped with three types: noise, VPM, and user
  • High-quality digital effects
  • Open source software that can be customized by the user
  • L.F. COMP. analog effect
  • Bi-timbre support
  • Voice modes that allow voices to be flexibly recombined
  • Arpeggiator equipped with a variety of types and range settings
  • Program Sort allows rapid access to 500 programs
  • Japanese-made high-quality natural touch keyboard
  • Oscilloscope function shows the waveform visually
  • Tough and stylish body made of aluminum and wood
  • Sync with another groove machine to enjoy jam sessions


  • Modulation wheel that can modify different parameters for each program, pitch wheel 
  • PORTAMENTO knob, VOICE SPREAD knob (only on prologue-16)


  • Main: Real-time OLED oscilloscope provides visual feedback of parameter changes 
  • MULTI ENGINE section: 7 segments x 6 digit LED display

Input/Output connectors


  • Head phone jack (Stereo phone jack) OUTPUT L/MONO, R jacks (monaural phone jack unballanced) 


  • SYNC IN jack (3.5 mm [1/8"] mini jack, maximun input level 20 V)SYNC OUT jack (3.5 mm [1/8"] mini jack, output level 5 V) 


  • MIDI IN jack, MIDI OUT jack 


  • USB B jack
Control Inputs:
  • EXPRESSION jack, DAMPER jack (half damper is not supported)


  • Power Supply: AC Power Supply terminal 
  • Power Consumption: 38W
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Product Demo Videos
Korg Prologue 16 Voice Sounds
This video shows some of the sounds that can be generated with the Korg Prologue synthesizer. This video shows a 16 voice, but there is also an 8 voice version available. The Prologue has 3 oscillators, 2 analog and a powerful digital oscillator, an analog filter and high quality digital effects.
Korg Prologue 16 Polyphonic Synthesizer Reviews